/* -*- C -*- * * Copyright (c) 2004-2005 The Trustees of Indiana University. * All rights reserved. * Copyright (c) 2004-2005 The Trustees of the University of Tennessee. * All rights reserved. * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, * University of Stuttgart. All rights reserved. * Copyright (c) 2004-2005 The Regents of the University of California. * All rights reserved. * $COPYRIGHT$ * * Additional copyrights may follow * * $HEADER$ * */ /** * @file: * Part of the bproc launcher. See pls_bproc.h for an overview of how it works. */ #include "orte_config.h" #include #include #include #include #include #include #include #include "opal/event/event.h" #include "opal/mca/base/mca_base_param.h" #include "opal/util/argv.h" #include "opal/util/output.h" #include "opal/util/opal_environ.h" #include "opal/util/path.h" #include "opal/util/show_help.h" #include "orte/util/sys_info.h" #include "orte/mca/errmgr/errmgr.h" #include "orte/mca/iof/iof.h" #include "orte/mca/ns/base/base.h" #include "orte/mca/sds/base/base.h" #include "orte/mca/oob/base/base.h" #include "orte/mca/ras/base/base.h" #include "orte/mca/rmgr/base/base.h" #include "orte/mca/rmaps/base/base.h" #include "orte/mca/rmaps/base/rmaps_base_map.h" #include "orte/mca/rml/rml.h" #include "orte/mca/soh/base/base.h" #include "orte/runtime/orte_wait.h" #include "orte/runtime/runtime.h" #include "pls_bproc.h" /** * Our current evironment */ extern char **environ; /** * Initialization of the bproc module with all the needed function pointers */ orte_pls_base_module_t orte_pls_bproc_module = { orte_pls_bproc_launch, orte_pls_bproc_terminate_job, orte_pls_bproc_terminate_proc, orte_pls_bproc_finalize }; static int orte_pls_bproc_node_array(orte_rmaps_base_map_t* map, int ** node_array, int * node_array_len); static int orte_pls_bproc_node_list(int * node_array, int node_array_len, int ** node_list, int * num_nodes, int num_procs); static int orte_pls_bproc_setup_io(orte_jobid_t jobid, struct bproc_io_t * io, int node_rank, int app_context); static void orte_pls_bproc_waitpid_cb(pid_t wpid, int status, void *data); static void orte_pls_bproc_waitpid_daemon_cb(pid_t wpid, int status, void *data); #ifdef MCA_pls_bproc_scyld /* compatibility functions for scyld bproc and pre 3.2.0 LANL bproc */ static int bproc_vexecmove_io(int nnodes, int *nodes, int *pids, struct bproc_io_t *io, int iolen, const char *cmd, char * const argv[], char * envp[]); static int bproc_vexecmove(int nnodes, int *nodes, int *pids, const char *cmd, char * const argv[], char * envp[]); #endif static void orte_pls_bproc_setup_env(char *** env, size_t * num_env); static int orte_pls_bproc_launch_daemons(orte_cellid_t cellid, char *** envp, int ** node_arrays, int * node_array_lens, int num_contexts, int num_procs, orte_vpid_t global_vpid_start, orte_jobid_t jobid); static int orte_pls_bproc_launch_app(orte_cellid_t cellid, orte_jobid_t jobid, orte_rmaps_base_map_t* map, int num_processes, orte_vpid_t vpid_start, orte_vpid_t global_vpid_start, int app_context, int * node_array, int node_array_len); /** * creates an array that is indexed by the node number and each entry contains the * number of processes that will be launched on that node. * * @param map single context mapping * @param node_array a pointer to put the node array into * @param node_array_len returns the length of the array * @retval >=0 the number of processes * @retval <0 orte err */ static int orte_pls_bproc_node_array(orte_rmaps_base_map_t* map, int ** node_array, int * node_array_len) { opal_list_item_t* item; int num_procs = 0; int num_on_node; *node_array_len = 0; for(item = opal_list_get_first(&map->nodes); item != opal_list_get_end(&map->nodes); item = opal_list_get_next(item)) { if(*node_array_len < atol(((orte_rmaps_base_node_t*)item)->node_name)) { *node_array_len = atol(((orte_rmaps_base_node_t*)item)->node_name); } } (*node_array_len)++; /* build the node array */ *node_array = (int*)malloc(sizeof(int) * *node_array_len); if(NULL == *node_array) { ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE); return ORTE_ERR_OUT_OF_RESOURCE; } memset(*node_array, 0, sizeof(int) * *node_array_len); for(item = opal_list_get_first(&map->nodes); item != opal_list_get_end(&map->nodes); item = opal_list_get_next(item)) { orte_rmaps_base_node_t* node = (orte_rmaps_base_node_t*)item; num_on_node = opal_list_get_size(&node->node_procs); (*node_array)[atol(node->node_name)] += num_on_node; num_procs += num_on_node; } return num_procs; } /** * Creates a bproc nodelist from a node array. * @param node_array an array of bproc nodes that contains the number of processes * to be launched on each node * @param node_array_len the length of the node array * @param node_list a pointer that the bproc node list will be returned in * @param num_nodes a pointer to return the number of nodes in the node list * @param num_procs the number of processes that a node must have to be on the * node list */ static int orte_pls_bproc_node_list(int * node_array, int node_array_len, int ** node_list, int * num_nodes, int num_procs) { int node; *num_nodes = 0; *node_list = (int*)malloc(sizeof(int) * node_array_len); if(NULL == *node_list) { ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE); return ORTE_ERR_OUT_OF_RESOURCE; } /* build the node list */ for(node = 0; node < node_array_len; node++) { if(node_array[node] >= num_procs) { (*node_list)[(*num_nodes)++] = node; } } return ORTE_SUCCESS; } /** * Sets up the bproc io structs for the specified rank on the nodes * * @param jobid * @param io A pointer to an array of 3 bproc_io_t structs * @param node_rank the rank on the node we are setting up the structs for * @param app_context the application context number * @retval ORTE_SUCCESS * @retval error */ static int orte_pls_bproc_setup_io(orte_jobid_t jobid, struct bproc_io_t * io, int node_rank, int app_context) { char *frontend = NULL, *path = NULL, *job = NULL; int rc, i; /* ensure that system info is set */ orte_sys_info(); if (NULL == orte_system_info.user) { /* error condition */ return ORTE_ERROR; } if (NULL == orte_universe_info.name) { /* error condition */ return ORTE_ERROR; } rc = orte_ns_base_convert_jobid_to_string(&job, jobid); if(ORTE_SUCCESS != rc) { ORTE_ERROR_LOG(rc); goto cleanup; } /* build the directory tree the io files will be in */ if (0 > asprintf(&frontend, "%stmp%sopenmpi-bproc-%s%s%s%s%s-%d%s%d", orte_system_info.path_sep, orte_system_info.path_sep, orte_system_info.user, orte_system_info.path_sep, orte_universe_info.name, orte_system_info.path_sep, job, app_context, orte_system_info.path_sep, node_rank)) { rc = ORTE_ERR_OUT_OF_RESOURCE; ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE); goto cleanup; } for(i = 0; i < 3; i++) { if(0 > asprintf(&path, "%s%s%d", frontend, orte_system_info.path_sep, i)) { rc = ORTE_ERR_OUT_OF_RESOURCE; ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE); goto cleanup; } if (mca_pls_bproc_component.debug) { opal_output(0, "mpirun bproc io setup. Path: %s\n", path); } io[i].fd = i; io[i].type = BPROC_IO_FILE; #if defined BPROC_API_VERSION && BPROC_API_VERSION >= 4 io[i].flags = 0; #else io[i].send_info = 0; #endif if(0 == i) { io[i].d.file.flags = O_RDONLY; } else { io[i].d.file.flags = O_WRONLY; } io[i].d.file.offset = 0; io[i].d.file.mode = 0; strncpy(io[i].d.file.name, path, 256); free(path); } cleanup: if (NULL != frontend) { free(frontend); } if (NULL != job) { free(job); } return rc; } /** * Callback for orte_wait_cb. This function decrements the number of currently * running processes, and when this hits 0 it kills all the daemons * @param wpid the process's pid * @param status tells why the process died * @param data a pointer to the process's name */ static void orte_pls_bproc_waitpid_cb(pid_t wpid, int status, void *data) { orte_process_name_t * proc = (orte_process_name_t*) data; int rc; /* set the state of this process */ if(WIFEXITED(status)) { rc = orte_soh.set_proc_soh(proc, ORTE_PROC_STATE_TERMINATED, status); } else { rc = orte_soh.set_proc_soh(proc, ORTE_PROC_STATE_ABORTED, status); } if(ORTE_SUCCESS != rc) { ORTE_ERROR_LOG(rc); } free(proc); OPAL_THREAD_LOCK(&mca_pls_bproc_component.lock); mca_pls_bproc_component.num_procs--; if(0 < mca_pls_bproc_component.debug) { opal_output(0, "in orte_pls_bproc_waitpid_cb, %d processes left\n", mca_pls_bproc_component.num_procs); } OPAL_THREAD_UNLOCK(&mca_pls_bproc_component.lock); } /** * Callback for orte_wait_cb for the daemons. If a daemon unexpectedly dies * before we are done launching, we abort the job. * @param wpid the daemons's pid * @param status tells why the daemon died * @param data a pointer to the node the daemon was on */ static void orte_pls_bproc_waitpid_daemon_cb(pid_t wpid, int status, void *data) { if(!mca_pls_bproc_component.done_launching) { /* if a daemon exits before we are done launching the user apps we send a * message to ourself so we will break out of the recieve loop and exit */ orte_buffer_t ack; int rc; int src[4] = {-1, -1}; src[2] = wpid; src[3] = *(int*)data; if(WIFSIGNALED(status)) { src[1] = WTERMSIG(status); } OBJ_CONSTRUCT(&ack, orte_buffer_t); rc = orte_dps.pack(&ack, &src, 4, ORTE_INT); if(ORTE_SUCCESS != rc) { ORTE_ERROR_LOG(rc); } rc = mca_oob_send_packed(MCA_OOB_NAME_SELF, &ack, MCA_OOB_TAG_BPROC, 0); if(0 > rc) { ORTE_ERROR_LOG(rc); } } OPAL_THREAD_LOCK(&mca_pls_bproc_component.lock); if(0 < mca_pls_bproc_component.num_daemons) { mca_pls_bproc_component.num_daemons--; } opal_condition_signal(&mca_pls_bproc_component.condition); OPAL_THREAD_UNLOCK(&mca_pls_bproc_component.lock); if(0 < mca_pls_bproc_component.debug) { opal_output(0, "in orte_pls_bproc_waitpid_daemon_cb, %d daemons left\n", mca_pls_bproc_component.num_daemons); } } #ifdef MCA_pls_bproc_scyld /** * compatibility function for scyld bproc and pre 3.2.0 LANL bproc. See the * bproc documentation for details */ static int bproc_vexecmove_io(int nnodes, int *nodes, int *pids, struct bproc_io_t *io, int iolen, const char *cmd, char * const argv[], char * envp[]) { int i; char * rank; for(i = 0; i < nnodes; i++) { pids[i] = fork(); if(0 == pids[i]) { /* set BPROC_RANK so the proc can get its name */ if (0 > asprintf(&rank, "%d", i)) { ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE); exit(-1); } opal_setenv("BPROC_RANK", rank, true, &envp); bproc_execmove_io(nodes[i], io, iolen, cmd, argv, envp); /* if we get here, there was an error */ opal_show_help("help-pls-bproc.txt", "bproc-vexecmove-launch", true, cmd, nodes[i], errno); ORTE_ERROR_LOG(ORTE_ERROR); exit(-1); } else if(-1 == pids[i]) { opal_show_help("help-pls-bproc.txt", "bproc-vexecmove-fork", true, errno); ORTE_ERROR_LOG(ORTE_ERROR); return -1; } } return nnodes; } /** * compatibility function for scyld bproc and pre 3.2.0 LANL bproc. See the * bproc documentation for details */ static int bproc_vexecmove(int nnodes, int *nodes, int *pids, const char *cmd, char * const argv[], char * envp[]) { return bproc_vexecmove_io(nnodes, nodes, pids, NULL, 0, cmd, argv, envp); } #endif /** * Sets up the passed environment for processes launched by the bproc launcher. * @param env a pointer to the environment to setup * @param num_env a pointer to where the size f the environment is stored */ static void orte_pls_bproc_setup_env(char *** env, size_t * num_env) { char ** merged; char * var; int rc; /* append mca parameters to our environment */ if(ORTE_SUCCESS != (rc = mca_base_param_build_env(env, (int*)num_env, false))) { ORTE_ERROR_LOG(rc); } /* ns replica contact info */ if(NULL == orte_process_info.ns_replica) { orte_ns.copy_process_name(&orte_process_info.ns_replica, orte_process_info.my_name); orte_process_info.ns_replica_uri = orte_rml.get_uri(); } var = mca_base_param_environ_variable("ns","replica","uri"); opal_setenv(var,orte_process_info.ns_replica_uri, true, env); free(var); /* make sure the frontend hostname does not get pushed out to the backend */ var = mca_base_param_environ_variable("orte", "base", "nodename"); opal_unsetenv(var, env); free(var); opal_unsetenv("HOSTNAME", env); /* make sure the username used to create the bproc directory is the same on * the backend as the frontend */ var = mca_base_param_environ_variable("pls","bproc","username"); opal_setenv(var, orte_system_info.user, true, env); free(var); /* tell the bootproxy to use the bproc_orted pls */ var = mca_base_param_environ_variable("rmgr", "bootproxy", "pls"); opal_setenv(var, "bproc_orted", true, env); free(var); /* gpr replica contact info */ if(NULL == orte_process_info.gpr_replica) { orte_ns.copy_process_name(&orte_process_info.gpr_replica, orte_process_info.my_name); orte_process_info.gpr_replica_uri = orte_rml.get_uri(); } var = mca_base_param_environ_variable("gpr","replica","uri"); opal_setenv(var,orte_process_info.gpr_replica_uri, true, env); free(var); /* merge in environment */ merged = opal_environ_merge(*env, environ); opal_argv_free(*env); *env = merged; /* make sure hostname doesn't get pushed to backend node */ opal_unsetenv("HOSTNAME", env); /* overwrite previously specified values with the above settings */ *num_env = opal_argv_count(*env); } /** * Launches the daemons * @param cellid the cellid of the job * @param envp a pointer to the environment to use for the daemons * @param node_arrays an array that holds the node arrays for each app context * @param node_array_lens an array of lengths of the node arrays * @param num_contexts the number of application contexts * @param num_procs the numer of processes in the job * @param global_vpid_start the starting vpid for the user's processes * @param jobid the jobid for the user processes * @retval ORTE_SUCCESS * @retval error */ static int orte_pls_bproc_launch_daemons(orte_cellid_t cellid, char *** envp, int ** node_arrays, int * node_array_lens, int num_contexts, int num_procs, orte_vpid_t global_vpid_start, orte_jobid_t jobid) { int * daemon_list = NULL; int num_nodes = 0; int num_daemons = 0; int rc, i, j; int * pids = NULL; int argc; char ** argv = NULL; char * param; char * orted_path; orte_jobid_t daemon_jobid; orte_process_name_t * proc_name; orte_vpid_t daemon_vpid_start = 0; size_t idx; struct stat buf; /* find the length of the longest node array */ for(i = 0; i < num_contexts; i++) { if(node_array_lens[i] > num_nodes) { num_nodes = node_array_lens[i]; } } if(NULL == (daemon_list = (int*)malloc(sizeof(int) * num_nodes))) { ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE); goto cleanup; } /* create a list of all the nodes that need daemons, which is all the nodes * that will have at least 1 process */ for(i = 0; i < num_nodes; i++) { for(j = 0; j < num_contexts; j++) { if(i < node_array_lens[j] && 0 < *(node_arrays[j] + i)) { daemon_list[num_daemons++] = i; break; } } } if(NULL == (pids = (int*)malloc(sizeof(int) * num_daemons))) { ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE); goto cleanup; } /* allocate a range of vpids for the daemons */ rc = orte_ns_base_get_jobid(&daemon_jobid, orte_process_info.my_name); if(ORTE_SUCCESS != rc) { ORTE_ERROR_LOG(rc); goto cleanup; } rc = orte_ns.reserve_range(daemon_jobid, num_daemons, &daemon_vpid_start); if(ORTE_SUCCESS != rc) { ORTE_ERROR_LOG(rc); goto cleanup; } /* set up the environment so the daemons can get their names once launched */ rc = orte_ns_nds_bproc_put(cellid, daemon_jobid, daemon_vpid_start, global_vpid_start, num_procs, envp); if(ORTE_SUCCESS != rc) { ORTE_ERROR_LOG(rc); goto cleanup; } argc = 0; opal_argv_append(&argc, &argv, mca_pls_bproc_component.orted); /* check for debug flags */ if (mca_pls_bproc_component.debug) { opal_argv_append(&argc, &argv, "--debug"); opal_argv_append(&argc, &argv, "--debug-daemons"); } opal_argv_append(&argc, &argv, "--bootproxy"); orte_ns.convert_jobid_to_string(¶m, jobid); opal_argv_append(&argc, &argv, param); free(param); /* pass along the universe name and location info */ opal_argv_append(&argc, &argv, "--universe"); asprintf(¶m, "%s@%s:%s", orte_universe_info.uid, orte_universe_info.host, orte_universe_info.name); opal_argv_append(&argc, &argv, param); free(param); /* tell orted not to demonize itself */ opal_argv_append(&argc, &argv, "--no-daemonize"); /* find orted */ if(0 == stat(mca_pls_bproc_component.orted, &buf)) { orted_path = strdup(mca_pls_bproc_component.orted); } else { orted_path = opal_path_findv(mca_pls_bproc_component.orted, 0, environ, NULL); if(NULL == orted_path) { asprintf(&orted_path, "%s/%s", ORTE_BINDIR, mca_pls_bproc_component.orted); if (0 != stat(orted_path, &buf)) { char *path = getenv("PATH"); if (NULL == path) { path = ("PATH is empty!"); } opal_show_help("help-pls-bproc.txt", "no-orted", true, mca_pls_bproc_component.orted, mca_pls_bproc_component.orted, path, ORTE_BINDIR); rc = ORTE_ERROR; ORTE_ERROR_LOG(rc); goto cleanup; } } } if(0 < mca_pls_bproc_component.debug) { opal_output(0, "PLS_BPROC DEBUG: launching %d daemons. cmd: %s ", num_daemons, orted_path); } /* launch the daemons */ mca_pls_bproc_component.num_daemons = num_daemons; rc = bproc_vexecmove(num_daemons, daemon_list, pids, orted_path, argv, *envp); if(rc != num_daemons) { opal_show_help("help-pls-bproc.txt", "daemon-launch-number", true, num_daemons, rc, orted_path); mca_pls_bproc_component.num_daemons = 0; rc = ORTE_ERROR; goto cleanup; } if(0 < mca_pls_bproc_component.debug) { opal_output(0, "PLS_BPROC DEBUG: %d daemons launched. First pid: %d\n", rc, *pids); } for(i = 0; i < num_daemons; i++) { if(0 >= pids[i]) { opal_show_help("help-pls-bproc.txt", "daemon-launch-bad-pid", true, daemon_list[i], pids[i], errno, orted_path); rc = ORTE_ERROR; ORTE_ERROR_LOG(rc); goto cleanup; } else { rc = orte_ns.create_process_name(&proc_name, cellid, daemon_jobid, daemon_vpid_start + i); if(ORTE_SUCCESS != rc) { ORTE_ERROR_LOG(rc); goto cleanup; } rc = orte_pointer_array_add(&idx, mca_pls_bproc_component.daemon_names, proc_name); if(ORTE_SUCCESS != rc) { ORTE_ERROR_LOG(rc); goto cleanup; } if (0 > asprintf(¶m, "%d", daemon_list[i])) { rc = ORTE_ERR_OUT_OF_RESOURCE; ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE); goto cleanup; } rc = orte_pls_base_set_node_pid(cellid, param, jobid, pids[i]); if(ORTE_SUCCESS != rc) { ORTE_ERROR_LOG(rc); goto cleanup; } free(param); rc = orte_wait_cb(pids[i], orte_pls_bproc_waitpid_daemon_cb, &daemon_list[i]); if(ORTE_SUCCESS != rc) { ORTE_ERROR_LOG(rc); goto cleanup; } } } cleanup: if(NULL != argv) { opal_argv_free(argv); } if(NULL != pids) { free(pids); } if(NULL != orted_path) { free(orted_path); } return rc; } /** * Launches the application processes * @param cellid the cellid of the job * @param jobid the jobid of the job * @param map a pointer to the mapping of this application * @param num_processes the number of processes in this job * @param vpid_start the starting vpid for this app context * @param global_vpid_start the starting vpid for the user's processes * @param app_context the application context number * @param node_array the node array for this context * @param node_array_len the length of the node array * @retval ORTE_SUCCESS * @retval error */ static int orte_pls_bproc_launch_app(orte_cellid_t cellid, orte_jobid_t jobid, orte_rmaps_base_map_t* map, int num_processes, orte_vpid_t vpid_start, orte_vpid_t global_vpid_start, int app_context, int * node_array, int node_array_len) { int * node_list = NULL; int num_nodes; int rc, i, j; int * pids = NULL; char * var, * param; orte_process_name_t * proc_name; struct bproc_io_t bproc_io[3]; if(NULL == (pids = (int*)malloc(sizeof(int) * node_array_len))) { ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE); goto cleanup; } /* set out app context */ asprintf(¶m, "%d", app_context); var = mca_base_param_environ_variable("pls", "bproc", "app_context"); opal_setenv(var, param, true, &map->app->env); free(param); free(var); /* overwrite previously specified values with the above settings */ map->app->num_env = opal_argv_count(map->app->env); /* launch the processes */ i = 1; rc = orte_pls_bproc_node_list(node_array, node_array_len, &node_list, &num_nodes, i); if(ORTE_SUCCESS != rc) { ORTE_ERROR_LOG(rc); goto cleanup; } while(0 != num_nodes) { /* setup environment so the procs can figure out their names */ rc = orte_ns_nds_bproc_put(cellid, jobid, vpid_start, global_vpid_start, num_processes, &map->app->env); if(ORTE_SUCCESS != rc) { ORTE_ERROR_LOG(rc); goto cleanup; } rc = orte_pls_bproc_setup_io(jobid, bproc_io, i - 1, app_context); if(ORTE_SUCCESS != rc) { ORTE_ERROR_LOG(rc); goto cleanup; } if(0 < mca_pls_bproc_component.debug) { opal_output(0, "pls_bproc: launching %d processes", num_nodes); } rc = bproc_vexecmove_io(num_nodes, node_list, pids, bproc_io, 3, map->app->app, map->app->argv, map->app->env); if(0 < mca_pls_bproc_component.debug) { opal_output(0, "pls_bproc: %d processes launched. First pid: %d", rc, *pids); } if(rc != num_nodes) { opal_show_help("help-pls-bproc.txt", "proc-launch-number", true, num_nodes, rc, map->app->app); rc = ORTE_ERROR; goto cleanup; } for(j = 0; j < num_nodes; j++) { if(0 >= pids[j]) { opal_show_help("help-pls-bproc.txt", "proc-launch-bad-pid", true, node_list[j], pids[j], errno, map->app->app); rc = ORTE_ERROR; ORTE_ERROR_LOG(rc); goto cleanup; } else { mca_pls_bproc_component.num_procs++; rc = orte_ns.create_process_name(&proc_name, cellid, jobid, vpid_start + j); if(ORTE_SUCCESS != rc) { ORTE_ERROR_LOG(rc); goto cleanup; } orte_pls_base_set_proc_pid(proc_name, pids[j]); if(ORTE_SUCCESS != rc) { ORTE_ERROR_LOG(rc); goto cleanup; } rc = orte_wait_cb(pids[j], orte_pls_bproc_waitpid_cb, proc_name); if(ORTE_SUCCESS != rc) { ORTE_ERROR_LOG(rc); goto cleanup; } } } free(node_list); node_list = NULL; i++; vpid_start += num_nodes; rc = orte_pls_bproc_node_list(node_array, node_array_len, &node_list, &num_nodes, i); if(ORTE_SUCCESS != rc) { ORTE_ERROR_LOG(rc); goto cleanup; } } cleanup: if(NULL != node_list) { free(node_list); } if(NULL != pids) { free(pids); } return rc; } /** * The main bproc launcher. See pls_bproc.h for a high level overview of how * the bproc launching works. * Here we: * -# Launch the deamons on the backend nodes. * -# The daemons setup files for io forwarding then connect back to us to * tells us they are ready for the actual apps. * -# Launch the apps on the backend nodes * * @param jobid the jobid of the job to launch * @retval ORTE_SUCCESS * @retval error */ int orte_pls_bproc_launch(orte_jobid_t jobid) { opal_list_item_t* item; opal_list_t mapping; orte_cellid_t cellid; orte_rmaps_base_map_t* map; orte_vpid_t vpid_launch; orte_vpid_t vpid_range; orte_vpid_t vpid_start; int rc; int src[4]; int ** node_array = NULL; int * node_array_len = NULL; int num_processes = 0; int context = 0; size_t idx, j; /* query for the application context and allocated nodes */ OBJ_CONSTRUCT(&mapping, opal_list_t); if(ORTE_SUCCESS != (rc = orte_rmaps_base_get_map(jobid, &mapping))) { ORTE_ERROR_LOG(rc); return rc; } if(ORTE_SUCCESS != (rc = orte_rmaps_base_get_vpid_range(jobid, &vpid_start, &vpid_range))) { ORTE_ERROR_LOG(rc); goto cleanup; } /* get the cellid */ rc = orte_ns_base_get_cellid(&cellid, orte_process_info.my_name); if(ORTE_SUCCESS != rc) { ORTE_ERROR_LOG(rc); goto cleanup; } /* do a large lock so the processes will not decrement the process count * until we are done launching */ OPAL_THREAD_LOCK(&mca_pls_bproc_component.lock); /* create an array to hold the pointers to the node arrays for each app * context. Also, create an array to hold the lengths of the node arrays */ node_array = malloc(opal_list_get_size(&mapping) * sizeof(int *)); node_array_len = malloc(opal_list_get_size(&mapping) * sizeof(int *)); /* for each application context - create a node array and setup its env */ for(item = opal_list_get_first(&mapping); item != opal_list_get_end(&mapping); item = opal_list_get_next(item)) { map = (orte_rmaps_base_map_t*)item; rc = orte_pls_bproc_node_array(map, &node_array[context], &node_array_len[context]); if(0 > rc) { ORTE_ERROR_LOG(rc); goto cleanup; } orte_pls_bproc_setup_env(&map->app->env, &map->app->num_env); num_processes += rc; context++; } /* launch the daemons on all the nodes which have processes assign to them */ rc = orte_pls_bproc_launch_daemons(cellid, &map->app->env, node_array, node_array_len, context, num_processes, vpid_start, jobid); if(ORTE_SUCCESS != rc) { ORTE_ERROR_LOG(rc); goto cleanup; } /* wait for communication back from the daemons, which indicates they have * sucessfully set up the pty/pipes and IO forwarding which the user apps * will use */ for(j = 0; j < mca_pls_bproc_component.num_daemons; j++) { orte_buffer_t ack; OBJ_CONSTRUCT(&ack, orte_buffer_t); rc = mca_oob_recv_packed(MCA_OOB_NAME_ANY, &ack, MCA_OOB_TAG_BPROC); if(0 > rc) { ORTE_ERROR_LOG(rc); OBJ_DESTRUCT(&ack); goto cleanup; } idx = 4; rc = orte_dps.unpack(&ack, &src, &idx, ORTE_INT); if(ORTE_SUCCESS != rc) { ORTE_ERROR_LOG(rc); } OBJ_DESTRUCT(&ack); if(-1 == src[0]) { /* one of the daemons has failed to properly launch. The error is sent * by orte_pls_bproc_waitpid_daemon_cb */ if(-1 == src[1]) { /* did not die on a signal */ opal_show_help("help-pls-bproc.txt", "daemon-died-no-signal", true, src[2], src[3]); } else { /* died on a signal */ opal_show_help("help-pls-bproc.txt", "daemon-died-signal", true, src[2], src[3], src[1]); } rc = ORTE_ERROR; ORTE_ERROR_LOG(rc); orte_pls_bproc_terminate_job(jobid); goto cleanup; } } context = 0; vpid_launch = vpid_start; /* for each application context launch the app */ for(item = opal_list_get_first(&mapping); item != opal_list_get_end(&mapping); item = opal_list_get_next(item)) { map = (orte_rmaps_base_map_t*)item; rc = orte_pls_bproc_launch_app(cellid, jobid, map, num_processes, vpid_launch, vpid_start, map->app->idx, node_array[context], node_array_len[context]); if(ORTE_SUCCESS != rc) { ORTE_ERROR_LOG(rc); goto cleanup; } free(node_array[context]); context++; vpid_launch = vpid_start + mca_pls_bproc_component.num_procs; } mca_pls_bproc_component.done_launching = true; cleanup: OPAL_THREAD_UNLOCK(&mca_pls_bproc_component.lock); while(NULL != (item = opal_list_remove_first(&mapping))) OBJ_RELEASE(item); if(NULL != node_array) { free(node_array); } if(NULL != node_array_len) { free(node_array_len); } OBJ_DESTRUCT(&mapping); return rc; } /** * Terminate all processes associated with this job - including * daemons. */ int orte_pls_bproc_terminate_job(orte_jobid_t jobid) { pid_t* pids; size_t i, num_pids; int rc; /* kill application process */ if(ORTE_SUCCESS != (rc = orte_pls_base_get_proc_pids(jobid, &pids, &num_pids))) return rc; for(i=0; i